Home / 15,701.59-21,669.71-8,985.88

Finding the Fourth Proportional to 15,701.59, 21,669.71 and 8,985.88

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Solution

The fourth proportional to 15,701.59, 21,669.71 and 8,985.88 is: 12,401.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,701.59 : 21,669.71 = 8,985.88 : x
  2. Step 2: Convert to fraction form
    15,701.59/21,669.71 = 8,985.88/x
  3. Step 3: Cross multiply
    15,701.59x = 21,669.71 × 8,985.88
  4. Step 4: Simplify right side
    15,701.59x = 194,721,413.69
  5. Step 5: Solve for x
    x = 194,721,413.69/15,701.59
  6. Step 6: Final answer
    x = 12,401.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.